Princeton Day School: A Legacy of Academic and Athletic Excellence
Located in the heart of Princeton, Mercer County, New Jersey, Princeton Day School (PDS) is a premier private, independent coeducational institution. Serving students from pre-kindergarten through twelfth grade, the school is dedicated to fostering intellectual growth and personal development under its motto, Semper Luceat ("Always Shine").
The school operates across a sprawling 103-acre campus, providing a rich environment for both academic rigor and extracurricular exploration. With a strong emphasis on small class sizes, PDS maintains a student-to-teacher ratio of 7.4:1, ensuring personalized attention for its student body of approximately 972 students.

Key Facts
- Established: 1899
- Accreditation: Middle States Association of Colleges and Schools since 1989
- Student Body: 952 students (plus 20 in PreK as of 2023–24)
- Faculty: 128.1 Full-Time Equivalents (FTEs)
- Endowment: $43,000,000
- Campus Size: 103 acres
- Mascot: Panthers
History and Evolution
The origins of Princeton Day School are rooted in a series of educational milestones. In 1924, a group of parents founded the Princeton Junior School for boys (grades 4–9) on Bayard Lane. By 1932, the institution moved to a dedicated campus at 171 Broadmead and was renamed Princeton Country Day School (PCD). This campus, known for its academic prestige, eventually became part of Princeton University.
The modern iteration of the school emerged from the merger of Miss Fine's School for Girls and Princeton Country Day School for Boys, officially becoming Princeton Day School in 1965. To sustain its growth, the school launched the "Investing in Excellence" capital campaign in 2005, which raised $53 million from over 4,000 contributors to enhance facilities and increase financial aid.
Campus Life and Traditions
One of the school's most cherished traditions is Blue & White Day. Founded by Physical Education teacher Kim Bedesem, the event is now dedicated to her memory. Students and faculty wear T-shirts featuring the name "KIM" as they engage in friendly competitions between the Blue and White teams, a spirit of rivalry that dates back over 60 years to the school's predecessor institutions.
The campus is anchored by Colross, the school administration building, which is a Georgian mansion originally moved from Alexandria, Virginia.
Athletics and Achievements
Competing in the Patriot Conference, the Panthers offer 22 interscholastic sports. The school has a storied history of success in the NJISAA Prep State Championships and NJSIAA State Championships.
Championship Highlights
- Ice Hockey: Dominant runs in Boys' Ice Hockey (including a streak from 1998–2004) and Girls' Ice Hockey.
- Tennis & Lacrosse: Numerous titles in Boys' Tennis and Girls' Lacrosse throughout the 1980s and 2000s.
- Soccer: The Boys' soccer team notably won the 2010 Mercer County Tournament and the Prep B state championship.
- Cross Country: Recent successes include the Boys' Cross Country state championship in 2024.
Notable Alumni
Princeton Day School has served as the educational foundation for a diverse array of influential figures across various fields:
- Academia & Science: Nobel laureate in Economics George Akerlof and neuroscientist Nancy M. Bonini.
- Arts & Entertainment: Phish guitarist Trey Anastasio, lyricist Tom Marshall, and actor Zach Cherry.
- Sports: NBA player Davon Reed and professional baseball player Jake Alu.
- Public Service: Former New Jersey General Assembly member John W. Hartmann.
- History: Ruth Cleveland, the eldest daughter of U.S. Presidents Grover Cleveland.
School Overview Summary
| Category | Details |
|---|---|
| Type | Private, Independent, Coeducational |
| Grades Served | PreK – 12 |
| Head of School | Kelley Nicholson-Flynn |
| Tuition (Grades 7–12) | $45,360 (2023–24) |
| School Colors | Blue and White |
| Student-Teacher Ratio | 7.4:1 |
Frequently Asked Questions
What is the student-to-teacher ratio at Princeton Day School?
As of the 2023–24 school year, the student-to-teacher ratio is 7.4:1, based on an enrollment of 952 students and 128.1 full-time equivalent faculty members.
Which grades does the school serve?
Princeton Day School provides education for students from pre-kindergarten (PreK) through twelfth grade (12).
What is the significance of Blue & White Day?
Blue & White Day is a long-standing tradition of friendly competition between two teams. It is currently dedicated to the memory of former Physical Education teacher Kim Bedesem.
Is Princeton Day School accredited?
Yes, the school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1989.
Who is the current Head of School?
Kelley Nicholson-Flynn has served as the Head of School since July 2023.